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洗砂过滤设备有圆型与方型二种,圆型如图1所示。原水首先进入双层筒高位水箱1中,经过配水口2流入到过滤室3进行过滤,滤后水经过筒壁滤网7流入到滤后水室8,经过自动控制阀门9而排出。由于空气升液器的作用,污砂从漏斗徐徐下降,经空气升液槽10到空气升液管11提升到上部空气升液排出管5,进入到洗砂分离室4,在空气升液槽10的出口由空气提升装置12供给空气。砂从分离室4下部返回到过滤室3循环使用。
There are two types of sand washing equipment: round and square, as shown in Figure 1. The raw water first enters the double cylinder high water tank 1, passes through the water distribution port 2 and flows into the filter room 3 for filtration, and the filtered water flows into the filtered water room 8 through the wall screen 7 and is discharged through the automatic control valve 9. Due to the action of the air lifter, the dirt sand slowly descends from the funnel, and is lifted by the air lift tank 10 to the air lift pipe 11 to the upper air lift discharge pipe 5 and enters the sand washing separation chamber 4 in the air lift tank The outlet of 10 is supplied with air by air lift device 12 . Sand is returned from the lower part of the separation chamber 4 to the filtration chamber 3 for recycling.